Sulky gang-plow



UNITED STATES WILLIAM J. BROWNE, OF

PATENT I OFFICE.

GLADSTONE, MINNESOTA.

SULKY GANG-PLOW.

EiPECIFICATION forming part of Letters Patent No. 501,179, dated July 11, 1893.

Application filed August 22, 1892. Serial No. 443,824:- (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM J. BROWNE, a citizen of the United States, residing at Gladstone, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Sulky Gang-Flows, of which the following is a specification.

This invention relates to sulky gang plows, and consists in the construction, combination, and arrangement of parts, as hereinafter shown and described, and specifically pointed out in the claim.

In the drawings, Figure 1 isa side elevation, and Fig. 2 is a plan view, of the beams and mold boards of a gan g plow, with my improvements attached thereto. Fig. 3 is an enlarged side elevation, and Fig. 4 is an enlarged plan view, of a portion'of the trailing wheel connecting mechanism, illustrating more fully the details of the construction.

A A represent the mold boards, and A A the beams connected by the cross braces A and A the seat, all arranged in the ordinary manner.

B is the trailing wheel journaled in a yoke frame formed of curved side pieces B B connected at their upper ends to a head block or frame 13 and supporting the axle B of the trailing wheel in their lower ends.

Rigidly supported in a substantially upright position in the head frame B is a shaft D having a bracket D swiveled upon it above the frame B and also provided with an arm D rigidly attached to its upper end, which serves the double purpose of an arm to carry a trip latch and stop, but also as a bearing to prevent the bracket from being thrown from its seat.

Projecting backward from the swiveled bracket D is a smaller bracket or arm D having guides at a through which aspringbolt D fits, the outer end of the spring bolt being enlarged and formed into adoublyinclined head I) projecting beyond the outer end of the bracket D and adapted to engage with a correspondingly doubly inclined cavity or depression b in a rib 19 depending from the outer end of the arm D while the inner end of the bolt projects through the guide a and is formed with an incline b underneath which the undercut end I) of a gravity latch D piv oted at b in the arm D fits when the latch is depressed, as in Figs. 1, 2, and 3.

Projecting from the front side of the bracket D is a wing or plate D upon which a clamping plate D is swiveled at d and attached rigidly by its free end to the rear of the longer beam A as shown,the plate D being pivoted to the wing D so that the bracket D and its attached trailing wheel, arms, and other parts, Will freely move vertically upon the pivot 01.

Pivoted at d upon the clamp plate 1) is a lever D projecting upward and forward and provided with a spring pawl e adapted to engage with segmentally arranged teeth 6 upon the plate D as shown. The lower end of the lever D projects downward below the line of its pivot (1 and is connected byapivoted link D to the lower portion of the wing D as shown.

- D is a supporting plate connecting the pivot d and beams A A so as to form an additional connection between the bracket D and the beams and also to support the pivot 61 of the lever D", whereby the connection between the parts is greatly strengthened and supported. By this simple arrangement if the lower end will by its connection to the bracket D by the link D throw the bracket D and its attached trailing wheel upward, thus allowing the plows to out a deeper furrow, and then per contra if the lever be drawn backward, the trailing wheel will be thrown downward, so that the plows will be correspondingly elevated, to either cuta more shallow furrow, or to be elevated entirely from the ground. Thus by adjusting the lever D along the segmental teeth 6 the shares of the plows may be set to cut any desired depth, or elevated entirely from the ground, as may be required. WVhen the gravity latch D is depressed with its undercut point b in the rear of the bolt D and with the doubly angular end I) in its seat in the cavity b the arm D will be thereby held rigidly coupled to the bracket D and thus retain the trailing wheel B in a fixed position in line parallel with the land sides of the plow. \Vhen forming straight furrows this will be the position in which the parts will be retained, but when turning corners, or when it is desired to form short curves,

the lever I) be moved downward or forward the latch D is elevated as shown in dotted lines in Fig. 3, which leaves the boltD free to be depressed by any pressure brought to bear against its outer end. IVhen thus ar ranged any side strains upon the forward ends of the beams would cause the bracket D with its arm D to be moved to one side and thereby cause the bolt D to be compressed against the inclined edges of the cavity b and thus release the trailing wheel and permit it to follow the curved line of the furrow. Then when the plow is again brought into a straight line the end I) of the spring bolt will snap into place in the cavity 12 as before, where it may be againlocked by the latch D Curved or angular guide Wings b are formed upon the lip b to act as guides to cause the end I) of the bolt D to enter its seat with certainty, as well as to reduce the friction between the parts.

Having thus described my invention, what I claim as new is- In a gang plow, the beams having the plate D attached thereto, bracket D pivoted vertically to said plate and having vertical shaft D journaled therein, and provided with arm D carrying spring bolt D, the trailing Wheel B attached to the lower end of said shaft and adapted to be moved laterally therewith, an arm D upon the upper endrofsaid shaft and having depending concave lip b with which said spring bolt is adapted to engage, and a trip latch D pivoted in said arm D and adaptted to lock said trip bolt in engagement with said lip, whereby a rigid coupling is capable of being made between said trailing wheel frame and said beams, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing 40 witnesses.

WILLIAM J. BROWNE.

Witnesses:

O. N. WOODWARD, II. S. WEBSTER. 

